Accounts receivable works like this: when your business delivers a product or service on credit, you record the amount the customer owes as an asset on your books, then clear that asset when the payment arrives. It sits on the balance sheet as a current asset because you expect to collect within a year, and the size and age of that balance shapes your cash flow, your borrowing capacity, and the accuracy of your financial statements.
The mechanics only exist under accrual accounting. Accrual records revenue when it’s earned, so a sale hits your books the moment you deliver, even though cash won’t arrive for weeks. That gap is the receivable. Under the cash method, nothing is recorded until the customer actually pays, so there’s no receivable to track. The IRS generally requires C corporations and partnerships with a C corporation partner to use accrual, unless average annual gross receipts over the prior three tax years are $30 million or less, in which case the cash method is usually available. Many small service businesses stay on cash and never keep a formal AR ledger.
The Lifecycle of a Receivable
A receivable begins with an agreement on payment terms. These are usually written in shorthand. “Net 30” means full payment is due within 30 days of the invoice. “2/10 Net 30” means the customer can take a 2% discount by paying within 10 days, otherwise the full amount is due in 30. Those terms decide when the invoice is considered overdue.
Next you issue the invoice. On your books, you debit accounts receivable and credit sales revenue, recognizing the sale even though no cash has moved. The clock on the payment window starts here.
Then comes collection. You track due dates, send reminders as they approach, and follow up when invoices go past due. This is where discipline pays off. The difference between a 25-day average collection period and a 55-day one can be the difference between making payroll comfortably and drawing on a credit line. The cycle closes when the customer pays: you debit cash and credit accounts receivable, and the balance for that invoice comes off the books.
If the invoice carried an early-payment discount and the customer took it, the difference is recorded as a sales discount rather than revenue.
How AR Is Recorded and Tracked
AR runs on two layers of records. The general ledger holds a single control account showing the combined total owed by all customers. Behind it sits a subsidiary ledger with a separate record for each customer, tracking their individual invoices, payments, credit memos, and running balance. The subsidiary ledger total has to match the control account. When it doesn’t, something is wrong, and catching the discrepancy early is a basic internal control.
The Aging Schedule
The aging schedule is the most useful report AR produces. It sorts every outstanding invoice by how long it has been unpaid, usually in buckets: current, 1–30 days past due, 31–60 days, 61–90 days, and over 90 days. The older the bucket, the less likely the money is coming. An invoice 15 days late is routine follow-up. An invoice 90 days late needs a phone call, a formal demand, or a decision about writing it off.
The schedule also reveals patterns. If one customer keeps landing in the 60-day column, their terms may need tightening. If the share of receivables in older buckets keeps growing quarter over quarter, the credit policy or the collection process needs work.
Where Accounts Receivable Shows Up on the Financials
Balance Sheet
AR appears as a current asset, but not at face value. It’s reported at net realizable value: the gross amount customers owe minus an allowance for the portion you don’t expect to collect. If customers owe $500,000 and you estimate $15,000 won’t come in, the balance sheet shows $485,000. The allowance account (often called “allowance for doubtful accounts” or “allowance for credit losses”) sits right below the gross receivable as a contra-asset.
Income Statement
Credit sales show up as revenue the moment the sale is made. The cost of customers who never pay appears as bad debt expense, reducing reported profit. Under proper accrual accounting, that expense is estimated and recorded in the same period as the sale, not months later when you finally give up. This is the matching principle: revenue and its related costs belong in the same period.
Cash Flow Statement
This is where the difference between recorded revenue and actual cash becomes visible. Under the indirect method, which most companies use, the statement starts with net income and adjusts for items that affected income but didn’t involve cash. An increase in AR during the period means you recognized more revenue than you collected, so it reduces operating cash flow. A decrease means you collected more than you sold on credit, which boosts cash flow. Following that line across several quarters tells you whether your business is generating real cash or just accumulating promises to pay.
Accounting for Customers Who Don’t Pay
Some customers won’t pay, and there are two very different ways to record that reality.
The Direct Write-Off Method
This is the simpler approach. You don’t record a bad debt expense until a specific customer account is confirmed uncollectible. When it is, you debit bad debt expense and credit accounts receivable for that customer’s balance. The problem is timing: the sale might have been recorded in January and the write-off recorded in November, which means January’s financials overstated profit. That breaks the matching principle, and the direct write-off method is not compliant with GAAP for financial reporting. The IRS, however, requires it for tax deductions on bad debts, so many businesses maintain it for tax purposes alongside a GAAP-compliant method for their books.
The Allowance Method
The allowance method estimates uncollectible amounts up front instead of waiting for specific accounts to fail. At the end of each reporting period, management estimates how much of the current receivables won’t be collected, then debits bad debt expense and credits the allowance for doubtful accounts. Common estimation approaches apply a historical loss percentage to total credit sales, or use the aging schedule to assign progressively higher loss percentages to older buckets.
When a specific customer is later confirmed uncollectible, you debit the allowance and credit accounts receivable. No new expense hits the income statement. The expense was already recorded in the estimation step, and the write-off just shifts the balance between two balance sheet accounts.
The CECL Standard
ASC 326, known as the Current Expected Credit Losses standard, changed how those estimates are built. The older “incurred loss” model only recorded a loss when it became probable that a specific receivable wouldn’t be collected. CECL replaced that with a forward-looking model: companies estimate expected losses over the entire life of a receivable from the moment it’s recorded, factoring in historical loss rates, current economic conditions, and reasonable forecasts.
CECL took effect for SEC-filing public companies for fiscal years beginning after December 15, 2019, and for all other entities, including smaller reporting companies, private companies, and nonprofits, for fiscal years beginning after December 15, 2022. If your business follows GAAP, allowance estimates should reflect this forward-looking approach.
Tax Treatment of Bad Debts
Book accounting and tax accounting handle bad debts under different rules. The IRS allows businesses to deduct a bad debt only if the amount was previously included in gross income. Accrual-basis businesses that recorded the revenue when the sale was made meet that requirement automatically. Cash-basis businesses that never reported the income generally can’t deduct the bad debt, because for tax purposes nothing was lost.
A debt is considered worthless when facts and circumstances show there’s no reasonable expectation of repayment. You need to show you took reasonable steps to collect. Going to court isn’t required if you can show a judgment would be uncollectible anyway. The deduction has to be taken in the year the debt becomes worthless. Business bad debts can be deducted in full or in part. Nonbusiness bad debts must be totally worthless before they’re deductible, and they’re treated as short-term capital losses rather than ordinary deductions.
Business bad debts are reported on Schedule C for sole proprietors or on the applicable business return for other entity types. Nonbusiness bad debts are reported on Form 8949 with a statement explaining the debt, the debtor, the collection efforts, and how you determined the debt was worthless.
Measuring How Well Your AR Is Working
Two metrics dominate. Used together, they show how quickly you’re turning credit sales into cash and whether the trend is improving.
Days Sales Outstanding
DSO is the average number of days it takes to collect after a sale. Divide accounts receivable by total credit sales for the period, then multiply by the number of days in the period. If AR is $200,000, quarterly credit sales are $600,000, and the quarter has 90 days, DSO is 30 days. You’re collecting in about a month on average.
What counts as good depends on your industry. A consumer business paid by credit card might see DSO under 20 days. An enterprise software company invoicing large corporations on Net 60 might run 55 to 70 days and consider that healthy. The number matters most as a trend. If DSO climbed from 35 to 50 over three quarters, collection is losing ground regardless of what peers are doing.
Accounts Receivable Turnover Ratio
The turnover ratio measures how many times per year you collect your average receivable balance. Divide net credit sales by average accounts receivable. If net credit sales are $2.4 million and average AR is $200,000, turnover is 12, meaning you cycle through receivables roughly once a month. A higher ratio signals efficient collection. A declining ratio over time signals receivables piling up faster than you’re collecting them, usually because credit terms have loosened, follow-up has weakened, or customers are in financial trouble.
Turning Receivables Into Cash Early
When waiting isn’t workable, there are two ways to convert receivables into cash now.
Factoring means selling your unpaid invoices to a third party at a discount. The factor advances most of the invoice value, often within 24 hours, and collects from your customer directly. Fees typically run 1% to 5% per 30-day period, depending on customer credit and invoice volume. With recourse factoring, you’re still on the hook if the customer doesn’t pay. With non-recourse factoring, the factor absorbs that risk and charges more for it.
Pledging receivables works differently. You keep ownership and continue collecting from your customers yourself, but you use the receivables as collateral for a loan. This is common in asset-based lending, where the available credit line moves up and down with the value of eligible receivables. Your customers never know a lender is involved.
One Boundary Worth Knowing
Collecting your own receivables under your own business name is different from third-party debt collection. The Fair Debt Collection Practices Act generally does not apply to a business collecting debts it originated in its own name, and it only covers consumer debts incurred for personal, family, or household purposes. Business-to-business receivables sit outside its scope. That protection disappears if you collect under a name that suggests a third party is involved, or once you hand the account to a collection agency or sell the debt. State consumer protection and unfair business practice laws can still apply, so professional and documented collection communications are the safer default regardless of what federal law technically requires.